Kerri Williamson, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA58151 Issued in CA

Practice address

333 1St St Ste a
San Francisco, CA 94105-2661

Phone

(302) 386-7767

NPI assigned

Oct 22, 2018

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in CA, FL2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 2

Specialty

Physician Assistant

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Circle Medical Care Group PA

  • Family Medicine Physician
  • Tampa, FL
  • NPI 1972358760
  Medicare reassignment NPD
• Circle Medical Care of California

  • Family Medicine Physician
  • San Francisco, CA
  • NPI 1134596091
  Medicare reassignment

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1540166400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747699200000",
    "number": "1508332149",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 HIDDEN HILLS DR",
            "city": "SEAFORD",
            "state": "DE",
            "postal_code": "199738034"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 1ST ST STE A",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941052661",
            "telephone_number": "302-386-7767"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1125 Forrest Ave Ste 203",
            "address_purpose": "LOCATION",
            "city": "Dover",
            "state": "DE",
            "postal_code": "199043483",
            "country_code": "US",
            "telephone_number": "302-346-0100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "KERRI",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-10-22",
        "last_updated": "2025-05-20",
        "certification_date": "2025-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "DE",
            "license": "C5-0001258",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "FL",
            "license": "PA9117380",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA58151",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Walter Williams
• Zakiya Williams
• Brianna Noelle Williamson, MD
• Clark Williamson
• Danielle M Williamson, MD
• Shannon F. Williamson, ASW
• Aisha Willingham-Rice
• Tyanna Willis-Vanarsdale
• Autry Ann Willis
• Clare Genevieve Willis, PSYD

• Physician Assistant in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.